'Within living memory' - ie a witness to the event, grandparent, etc
'Written / photographic account' - ie the event has been recorded either on paper or on film
'Other evidence' - eg archeological dig and interpretation of the results.
History is studied through three primary sources: primary sources provide firsthand accounts, secondary sources interpret these accounts, and tertiary sources summarize information from both. Understanding the differences between these sources is essential for researching and analyzing historical events accurately. Each source offers unique insights that contribute to a fuller understanding of history.
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Jawaban:Kebutuhan consumable adalah barang-barang yang digunakan dan habis setelah pemakaian, baik sekali pakai atau dalam jangka waktu tertentu / Barang Habis PakaiPenjelasan:Contoh : Alat Tulis Kantor dan Tinta Printer